Play Calc

Play calc, this game is the four numbers specified by the add, subtract, multiply and divide method to get 24. Is to find a way to manipulate four integers so that the end result is 24. Game rule: given four numbers between 1 to 10, find a formula to get result as 24 using all four numbers with +-×÷ and (). For example: if the four numbers are 1, 3, 6, 8, then 6×(8-3-1)=24 is a solution. if are 1, 1, 1, 1, then is no way to get 24, so just click equal sign button.